| Year |
Location |
Name |
Guest(s) of Honour |
Size |
Web |
| 1 | 1948 | London | Whitcon | Bertram Chandler | ? | |
| 2 | 1949 | London | Loncon | William F. Temple | ? | |
| 3 | 1952 | London | London SF Con | | ? | |
| 4 | 1953 | London | Coroncon | | ? | |
| 5 | 1954 | Manchester | Supermancon | John Russell Fearn | ? | |
| 6 | 1955 | Kettering | Cytricon | | ? | |
| 7 | 1956 | Kettering | Cytricon II | | ? | |
| 8 | 1957 | Kettering | Cytricon III | | ? | |
| 9 | 1958 | Kettering | Cytricon IV | | ? | |
| 10 | 1959 | Birmingham | Brumcon | Ken Slater | ? | |
| 11 | 1960 | London | London | E.J. "Ted" Carnell, Don Ford | ? | |
| 12 | 1961 | Gloucester | LXIcon | Kingsley Amis | ? | |
| 13 | 1962 | Harrogate | Ronvention | Tom Boardman | ? | |
| 14 | 1963 | Peterborough | Bullcon | Edmund Crispin | ? | |
| 15 | 1964 | Peterborough | RePetercon | Ted Tubb | ? | |
| 16 | 1965 | Birmingham | Brumcon II | Harry Harrison | ? | |
| 17 | 1966 | Yarmouth | Yarcon | Ron Whiting | ? | |
| 18 | 1967 | Bristol | Briscon | John Brunner | ? | |
| 19 | 1968 | Buxton | Thirdmancon | Kenneth Bulmer | ? | |
| 20 | 1969 | Oxford | Galactic Fair 1969 | Judith Merril | ? | |
| 21 | 1970 | London | SCI-CON 70 | James Blish | ? | |
| 22 | 1971 | Worcester | Eastercon 22 | Ethel Lindsay, Anne McCaffrey | ? | |
| 23 | 1972 | Chester | Chessmancon | Larry Niven | ? | |
| 24 | 1973 | Bristol | OMPAcon '73 | Samuel R. Delany | ? | |
| 25 | 1974 | Newcastle | Tynecon | Bob Shaw, Peter Weston | c415 | |
| 26 | 1975 | Coventry | Seacon | Harry Harrison | c.550 | |
| 27 | 1976 | Manchester | Mancon 5 | Peter Roberts, Robert Silverberg | ? | |
| 28 | 1977 | Coventry | Eastercon '77 | John Bush | ? | |
| 29 | 1978 | Heathrow, London | Skycon | Roy Kettle, Robert Sheckley | ? | |
| 30 | 1979 | Leeds | Yorcon | Graham and Pat Charnock, Richard Cowper | ? | |
| 31 | 1980 | Glasgow | Albacon | Jim Barker, Colin Kapp | ? | |
| 32 | 1981 | Leeds | Yorcon II | Tom Disch, Dave Langford, Ian Watson | ? | |
| 33 | 1982 | Brighton | Channelcon | Angela Carter, John Sladek | 815 | |
| 34 | 1983 | Glasgow | Albacon II | Marion Zimmer Bradley, Avedon Carol, James White | ? | |
| 35 | 1984 | Brighton | Seacon '84 | Pierre Barbet, Waldemar Kumming, Josef Nesvadba, Chris Priest, Roger Zelazny | ? | |
| 36 | 1985 | Leeds | Yorcon III | Gregory Benford, Linda Pickersgill | ? | |
| 37 | 1986 | Glasgow | Albacon III | Joe Haldeman, John Jarrold | ? | |
| 38 | 1987 | NEC, Solihull | BECCON87 | Chris Atkinson, Jane Gaskell, Keith Roberts | c.800 | |
| 39 | 1988 | Liverpool | Follycon | Gordon Dickson, Gwyneth Jones, Greg Pickersgill, Len Wein | ? | |
| 40 | 1989 | Jersey | Contrivance | Avedon Carol, Rob Hansen, M. John Harrison, Don Lawrence, Anne McCaffrey | ? | |
| 41 | 1990 | Liverpool | Eastcon | Iain Banks, Anne Page, SMS | 1100 | |
| 42 | 1991 | Glasgow | Speculation | Robert Holdstock | ? | |
| 43 | 1992 | Blackpool | Illumination | Geoff Ryman, Paul J. McAuley, Pam Wells | ? | |
| 44 | 1993 | Jersey | Helicon | John Brunner, George R. R. Martin, Karel Thole, Larry van der Putte | ? | |
| 45 | 1994 | Liverpool | Sou'Wester | Diane Duane, Neil Gaiman, Barbara Hambly, Peter Morwood | ? | |
| 46 | 1995 | London | Confabulation | Lois McMaster Bujold, Roger Robinson, Bob Shaw | ? | |
| 47 | 1996 | Heathrow, London | Evolution | Jack Cohen, Colin Greenland, Paul Kincaid, Bryan Talbot, Maureen Kincaid Speller, Vernor Vinge | ? | |
| 48 | 1997 | Liverpool | Intervention | Brian Aldiss, Octavia Butler, David Langford, Jon Bing | ? | |
| 49 | 1998 | Manchester | Intuition | Ian McDonald, Martin Tudor, Connie Willis | ? | |
| 50 | 1999 | Liverpool | Reconvene | Peter S. Beagle, John Clute, Jeff Noon | ? | |
| 51 | 2000 | Glasgow | 2Kon | Guy Gavriel Kay, Katherine Kurtz, Deborah Turner-Harris | ? | |
| 52 | 2001 | Hinckley | Paragon | Stephen Baxter, Claire Brialey, Lisanne Norman, Mark Plummer, Michael Scott Rohan | ? | |
| 53 | 2002 | Jersey | Helicon 2 | Brian Stableford, Harry Turtledove, Peter Weston | ? | |
| 54 | 2003 | Hinckley | Seacon03 | Chris Baker (Fangorn), Christopher Evans (author), Mary Gentle | ? | |
| 55 | 2004 | Blackpool | Concourse | Mitchell Burnside Clapp, Danny Flynn, Sue Mason, Christopher Priest, Philip Pullman | ? | |
| 56 | 2005 | Hinckley | Paragon 2 | John Harvey, Eve Harvey, Ken MacLeod, Robert Rankin, Ben Jeapes, Richard Morgan | estimate 700-750 | |
| 57 | 2006 | Glasgow | Concussion | M. John Harrison, Brian Froud, Elizabeth Hand, Justina Robson, Ian Sorensen | ? | |
| 58 | 2007 | Chester | Contemplation | | c.450 | |
| 59 | 2008 | Heathrow, London | Orbital 2008 | Neil Gaiman, Tanith Lee, China Miéville, Charles Stross, Rog Peyton | 1300+ | |
| 60 | 2009 | Bradford | LX | Jon Courtenay Grimwood, Tim Powers, David Lloyd, Bill Burns, Mary Burns | 850 | |
| 61 | 2010 | Heathrow, London | Odyssey 2010 | Alastair Reynolds, Iain M Banks, Liz Williams, Mike Carey, Fran Dowd, John Dowd | 1300+ | |
| 62 | 2011 | NEC, Solihull | Illustrious | David Weber, Peter F. Hamilton, David A. Hardy, Vince Docherty, Roz Kaveney | 956/877 | |
| 63 | 2012 | Heathrow, London | Olympus 2012 | Paul Cornell, Cory Doctorow, George R.R. Martin, Tricia Sullivan, Margaret Austin, Martin Easterbrook | 1400 | |
| 64 | 2013 | Bradford | EightSquaredCon | Walter Jon Williams, Freda Warrington, Anne Sudworth and Edward James | 800[8] | |
| 65 | 2014 | Glasgow | Satellite 4 | John Meaney, Juliet McKenna, Jim Burns, and Alice and Steve Lawson, Dame Jocelyn Bell Burnell, Terry Pratchett | 777 | |
| 66 | 2015 | Heathrow, London | Dysprosium | Jim Butcher, Seanan McGuire, Caroline Mullan, Herr Döktor | 1185 | |
| 67 | 2016 | Manchester | Mancunicon[9] | Aliette de Bodard, Dave Clements, Ian McDonald, Sarah Pinborough | ? | |
| 68 | 2017 | NEC, Solihull | Eastercon 2017/Innominate | Pat Cadigan, Judith Clute, Colin Harris | ? | |
| 69 | 2018 | Harrogate | Follycon | Kieron Gillen, Kim Stanley Robinson, Nnedi Okorafor, Christina Lake | 949 | |
| 70 | 2019 | Heathrow, London | Ytterbium | John Scalzi, Frances Hardinge, Sydney Padua, DC | 1119 | |
| 71 | 2020 | (online) | Concentric | convention cancelled except for bid session | 846* | |
| 72 | 2021 | (online) | Confusion | Dan Abnett, Nik Vincent, Dave Lally | 466 | |
| 73 | 2022 | Heathrow, London | Reclamation | Zen Cho (cancelled), Mary Robinette Kowal, Philip Reeve, Tasha Suri, Nicholas Whyte | 797* | |
| 74 | 2023 | Birmingham | Conversation | Zen Cho, Niall Harrison, Jennell Jaquays, Kari Sperring, Adrian Tchaikovsky, Ursula Vernon | 938 (88)* | |
| 75 | 2024 | Telford | Levitation | Jackie Burns, Genevieve Cogman, Michelle Sagara /(Michelle West), Tade Thompson, Elsa Sjunneson, Dr Srinarahari | 640 (75)* | |
| 76 | 2025 | Belfast | Reconnect | Lauren Beukes, Derek Landy, Jeannette Ng, Rebecca Roanhorse, Will Simpson (comics), Ian McDonald (British author) | 999 (50)* | |
| 77 | 2026 | Birmingham | Iridescence | RJ Barker, Emma Newman, Karen Lord, John Wilson, Serena Culfeather | | |
| 78 | 2027 | Glasgow | Unconfined | P. Djeli Clark, L. R. Lam, Mark Meenan, Tamsyn Muir | | |